Internal-combustion engine.



www@

1. BOUTEILLE. l INTERNAL cowlusmw ENG|NE.

APPLICATLON FILED 1ULY13, 1914.

Patented Jan. 11, 1916 gm). waqhm lmemow:

Altorney.

Urfa sfr'ias Parana; ration.

' JOSEPH BOUTEILLE, OF PARS,A FRAiNCE.

To all whom it may concern v Be it known that I,- JOSEPH BOUTEILLE, a.

citizen vof thev French Republic, residing at` 40 Rue Poussin, Paris, in the Republic of F rance, haveinvente'd `certain new and usefull Improvements in Internal-Combustion Engines, 'of which the following is a specification. Y

This 'invention ,relates more particularly to engines havingA a progressive internal combustion by injecting liquid fuelin -order to afford-said engines a better thermic efficiency, avoid deposits of hardly volatile matter, and still facilitate the control and construction.

The invention'consists in decreasing mechanically the compression chamber either i Wholly or in part during the working stroke' and injecting at the same time the liquid fuel.

The accompanying diagrammatic drawings shgw in Figures land 2 two constructions embodying the present invention.-

In carrying the invention' into effect asl illustrated in the 'diagrammatic .section shown in Fig. 1, a cylinder l is provided in which a driving piston 2'reciprocates and acts similarly toother engines,.fupon Ythe shaft 3 through the mediumo and the crank 5. .The compressio v is reduced in aU cylinder 6 having a volume determined by testsfwith respect to the volume of the whole 1. andl 2. In this cylinder 6 there is arranged a piston 7 connected to w the piston 2 by a rod 8. `A suction valve 9 E which may be automatic or controlled, will VA,permit of the admission of air at the desired timeas shown by the arrow 10 andanL exhaust valve 11 will also, permit of the egress oftheburnt gases at the desired time. The injection yof the fuel is effected by'v; .means of a suitable pump in 'proximity to the passage existing between the cylinders 1 and`6,N that is to say, where the compressed air of the cylinder 6 escapes during thefworking` stroke ofthe pistons 2 andi'.

This-liquid fuel will be ignited at 'thetimezv -it is injected by known means for instance,

bya spark produced at the sparking plug 12.

The operation ofthe engine is as follows: Assuming the pistons 2 and 7 connected by a rod 8, to be at the top oftheir stroke and that the shaft 3 rotates in the direction indicated by the arrow'lS, these pistons will, when descending, produce a suction of air through the valve 9 as the piston 2 is larger Specification of Letters Patent.

A Application filed July 13, 1914. Serial'No. 850,607.

l rati-,mea aan. ii, raie.

' than the piston 7 vand also as both have the 'same linear velocity. Once the cylinder` 1 is filled with air, the valve 9 closes and the piston 2 rising will compress in the space left by the piston 7 in the cylinder 6, this 'quantity of air right upto the top of the stroke. Liquid fuel is then injected i (into l the Zone between the cylinders l and 6) as indicated by the arrow 1-1, and this liquid.

is ignited in the carbureting air. The pistons descend and the fuel will form with this compressed air a real blow-pipe, the

flame l5 of which raises the temperature of the gases and vthus constitutes the motive pressure. -The exhaustofthe combustion gases iseffected on the return of the piston y to the upper partv and' so on. I

Fig. 2 shows a modification of the manne in which the invention may be carried into effect. The cylinder 6 and the piston 7 are in-the part connecting the two chambers.

This disposition permits of displacing angularly the movement of the. piston 2 with respect to that ofthe piston 7, of varying the stroke of the piston 7 according to the length of the crank 16l and of rotating thev shaft 17 at' a speed different to that of the shaft 3.

TheseV ltwo speeds are obtained by connecting together the shafts 3 and 17 through the medium of a gearing or by a chain 18; they may be also combined into one. The operation is-similar to that of the construction shown in Fig. 1.

The advantages obtained by the application ofthe Iinvention are numerous. The

`facility is aorded of giving the volumes 1-2 and 6-7 (compression) the desired .located laterally of the cylinder 1 and the v vpiston 2 at a greater or lesser distance, the 'injection and ignition being effected again proportions and of having a high thermic efficiency; of being able to operate vwith a or more cylinders with or without valves. The ignition may be of any kind, electrlc with a direct spark, by means of burners or spontaneous. 'I` he variations in power may be obtained by the variation of the quantity of the liquid injected, by the quantity of air admitted or by both means together.

What I claim and desire to secure by Letters Patent of the United States isgl. In an internal combustion engine operated by progressive internal combustion, in combination, a working cylinder with airinlet and exhaust valves, a relatively small compression cylinder thereon, a piston for said working cylinder, a piston for said compression cylinder, a positive connection for said pistons, an ignition device carried by said working cylinder, and a fuel admission inlet arranged at the mouth of said compression cylinder substantially as and for the purpose described. f

2. In an internal combustion engine operated by progressive internal combustion, in

combination, a working'cylinder with airV inlet and exhaust valves, a relatively small compression cylinder thereon, a piston for said working cylinder, a piston for said compression cylin'der, a positive connection for said pistons, an ignition device carried by said Arworking cylinder, and'fuel admission means att-he mouth of said compression cylinder adapted to admit fuel progressively during'the working stroke of the engine, substantially as described. 1

' In testimony whereof I aix my signature in presence of two witnesses.

' JOSEPH BOUTEILLE. Witnesses: i

. CHAs. P. PREssLY,

EUGENE PERTAVIN. 

